Automatic pressure-operable valve



March 10-1925. 1,529,569

E. D. BACH AUTOMATIC PRESSURE OPERABLE VALVE Filed N0v. 28. 1923 2 Sheets-Sheet l March 10. 1925. y 1,529,559

E. D. BACH AUTOMATIC PRESSURE OPERABLE VALVE4 Filed Nov. 28, 1923 2 Sheets-Sheet 2 57' W a l l a6 3 29 I .z g. 4.

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PATENT oFFlcl-z.y

EDWARD D. BACH, OF ARDMOBE, OLAHOHA.

`.NWJBOHA'IIIC PRESSURE-OPERABLE VALVE.

Application illed November 28, 1923. Serial No. 677,452.

To all whom it may concern:

Be it known that I, EDWARD D. BACH, a citizen of the United States, residing at Ardmore, in the county of Carter and State of Oklahoma, have invented certain new and useful Improvements in an Automatic Pressure-Operable Valve; and I' do hereby declare the following ,to be a full, clear, amd exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a valve and particularly to one adapted for automatic control \by the pressure 1n the pipe line or otherwise where it is installed or used.

A particular object of the presentinvention is to provide a valve which is so arranged as to allow any desired amount of pressure to accumulate in a line before it releases to shut off at any desired pressure.

Another object is to provide such a construction in which the pressure applied to a diaphragm to operate the valve may equalize after closing of the valve with the pressure on the low-pressure side of the valve. Y

Various additional objects and advantages will become apparent from a consideration of the description following taken in connection with the accompanying drawings illustrating an operative embodiment.

In said drawings Figure 1 is a view in side elevation illustrating the improved valve;

Figure 2 is a plan view;

Figure 3 is an end elevation taken at a ri ht angle to Figure 1;

igure 4 is a substantially central vertical sectional view taken at a right angle to Fiure 3 igure 5 is a sectional view on the line 5-5 of Figure 1;

Figure 6 is a sectional view on'the line 6-6 of Figure 1; and

Figure 7 is a substantially vertical sec-` tional view taken on the line 7-7 of Figure 3 and showing the pressure control valve in detail.

Like reference characters designate like or similar parts in the different views.

Referring specifically to the drawings, the valve has a casing 10 which is detachably or otherwise connected in any suitable manner as at 11 to pipe sections 12- in which material is adapted to flow in the direction of the arrows as indicated in Figure 4, and

degree, dependent upon for instance from a container, water well, 011 well, gas well or otherwise. .Appropriately arranged within the casng 10 and integral with it is a web 13 having spaced Walls 14 through which ports or openings 15 are provided. The ports 15 are adapted to bev c osed by valves 16 carried by a stem 17. As a plurality of the valves 16 are employed, if one does not efficiently close its seat or port 15, the other one will and thus an eective closing on the part of the Valve 16 is assured. Stem 17 is vertically slidable through a suitable packing box 18 at the top of the casing and is in sections 18sl and 18joined by threaded engagement with a turn-buckle 19 which is operable to vary the length of the valve.

The upper end of section 18h has connection as at 20 to a flexible diaphragm 21. Diaphragm 21 is fastened as by a' ring 22 and set screws 23 to a depending` iange 24 of a casing 25 which extends forwardly from and is integral with an arm 26 also integral with and rising from the casing 10. The casing 25 in combination with the diaphragm 21 rovides an hermetic chamber 27 between t e same.

cause the same to correspondingly. slide the stem 17 and open theports 15.

Valve 29 may be of any suitable construction but one capable of regulation. To this 'end it has a casing 29El enclosing a head or valve proper 34 having a gasket 34. The head 34 is normally held against its seat 34b by an expansive coil spring35. The-valve 34 is adapted to open by the pressure in pipe 28 upon the latter reachin a predetermined tzlie tension of the spring 35. Spring 35 therefore is adapted to be tensioned in order to control the opening of threaded to the casing 29a and engages the s ring 35. Head 34 has a stem 37 slidably lsposed in the plug 36 and exteriorly of the valve provided with a hand wheel 31. Thus this valve. To this end, a plug 36 is4 kof spring 35.

according to the position of the stem `and disk 37,l the tension of spring is varied.

A pi e 38 extends from the T 31 and is couple to an upst-anding pipe 39 which communicates with the interior of casing 10 in the rear `of the web 13. Pipe\38 may have a cut oi valve 40 therein.

In order to maintain the valve 16 nor mally seated, a lever 41 is employed which is sivoted at 42 to an arm 43 integral with an vextendin forwardly from the arm 26. One end of t e lever 41 is dis osed in the opening of turn buckle 19. poise 42 is adjustable along the lever 41 and 1s used to maintain the valves-16 seated and the stem 17 elevated.

In operation, with all of the valves closed, the device is set for opening' of the valves 16 at a predetermined pressure, according to the regulation of the stem 36 or tension Upon the accumulation of such pressure, the same will enter the pipe 28, unseat disk 34 and flow through fpipe 30,

T. 31, partly into pipe 38 but su ciently into pipe 32 and then into chamber 27 so as to expand the diaphragm 21, depress the stem 17 against the urgency of weight 42,

thus lowermg the valves 16, -uncovering the ports 15 and establishing communication throu h,the casing 10 with the pipe sections 12. he pressure is thus relieved. After such operation of the diaphragm '21, the pressure in chamber 27 will be relieved or equalized with the pressure in the casing 10 and pipe 12 in front thereof, through the pipe 38 and pipe 39, the degree of equalization being controlled by the valve 40. Such valve 40 is particularly desirable in order to reduce the size of opening 39 after exsaqueo pansion of the diaphragm, so that the pressure will not be tra ped and the back pres- (siulie will not hold Own the diaphragm unu y. Chan es may beresorted to provided they fall wit in the spirit and scope of the invention.

Having thus. described the invention, what I claim is: f

A valve having a casing, a Valve member therein, `a stem extendin from said valve member and exteriorlyo the casing, a diaphragm associated with said stem, a casing disposed over the first mentioned casing and to which said diaphragm is ,secured and forming a pressure chamber, means for the admission of pressure to said chamber including pipe means having a valve adjustyable to open at different pressures and for lconnectio-n on lthe high pressure Side of the valve, and pipe means leading from said pipe means for connection to the low pres'- sure sidev ofthe valve, and a regulable valve in thelast mentioned pipe means, an arm in tegral` with both of said casings, a weighted lever pivoted to said arm, sald stem being in sections, a'turn buckle connecting said Y sections and engaged by said lever, said lever being disposed between the arm and pipe means and terminating outwardly to oneside of the latter, said lever'serving to maintain the valvenormally closed. l In testimony whereof I ailix my signaturein presence of two witnesses.

EDWARD D'. BACH.

Witnesses:

T. E. STRAUS, C. A. TUTnm. 

